#include <stdio.h>
typedef union tmp {
	int val;
	float fval;
} utmp;
int main() {
	utmp tmp1 = {0};
	printf("&(tmp1.val)地址是%p\n", &(tmp1.val));
	printf("&(tmp1.fval)地址是%p\n", &(tmp1.fval));
	return 0;
}
